Rationalizing is a dangerous way to prove the existance of God.
People often use rationlaization to prove the existance of God and at the same time we muslims also try to follow the same path which often leads to the wrong conclusion. Although there is nothing wrong with it, the best way is to approach the way the Quran and the Sunnah has told us to do so.

Allaah says in the Qur'aan:
"Verily, in the creation of the Heavens and the Earth, and in the alternation of the night and day, and the ships that sail through the sea with that which is of benefit to human-kind, and the rain which Allaah sends down from the sky and makes the earth alive therewith after its death, and the moving (living) creatures of all kinds that He scatters therein, and in the changes in the direction of the winds, and the clouds which are held between the sky and the earth, are indeed Aayaat (proofs, signs, evidences) for a people of understanding" [Baqarah 2:164]